Sash lock



. Jan. 8 1924- A. H. BACON SASH LOCK Patented Jan. 8, 1924.

UNITED STATES .ALLAN H. BACON, 0F ST. LQUIB, MISSQUBI.'

sass Loony Application led Decemberv 5, 1991. lerill lo. 519,824.

To all whom t may concern: Y

Be it known that I, ALLAN H. BACON, a citizen of the United States, residing at the city of St. Louis, and State of Missouri, have invented a new and useful Sash Lock, of which the following is a specification.

This invention relates to sash locks.

An object of the invention is to provide improved means for locking window sashes in closed position or in dierent open posltions.

Another object of the invention is to provide an improved sash lock comprising a lock device embedded in one of the members of the lower window sash, and a suitable removable key for manipulating the lock device.

Another object of the invention is to provide an improved sash look comprising a locking device embedded in one of the sash members of the lower window, a suitable key for manipulating said lock device, and a cooperating element embedded in one of the members of the upper sash adapted to be engaged by the lock device carried by the lower sash.

Another object of the invention is to provide improved locking devices for locking the upper and lower windows in closed positions and including a number of locking devices, one of which is manipulative to draw the sash members toward each other and another of which is manipulative to impart pressure tending to force the sashes apart and effective to hold the sashes from movements toward open or closed positions, and suitable keys for manipulating the lock devices.

Other objects will appear from the following description, reference being made to the drawing, in whichl Fig. 1 is a view showing my improved jlocks applied to a window sash.

Fig. 2 is a cross sectional view on the line 2-2 o Fig. 1.

Fig. 3 is a sectional view on the line 3--3 of Fig. 1. n

Fig. 1 is a sectional view showing another form of locking device for drawing the sashes together.

Fig. 5 1s a view showing the inner face of the outer member of the lock and may be considered as viewed from the line 5 5 of Fig. 4.

Figs. 6 and 7 are sectional views showing variations in the form of the lock device for locking the sashes by frictional engagemen In the embodiment shown one of the lock devlces is embedded in the upper member of the lower window sash and in the lower member of the upper window sash, preferably near the center of thewindow; while the other lock device is embedded in one of the upper corner portions of the lower window sash.

The lookin device that is mounted near the middle o the window sashes is preferably of the construction and arrangement to-clamp the two window sashes together and to prevent vertical movement of either window. In the form of such locking device shown in Fig. 2, a barrel 1 is embedded within the upper member of the lower window sash and 1s formed with a circumferential ange 2 on its inner end which may be seated in a recess in the sash member to form an ornamental escutcheon. Screws 3 .passing through holes in the flange 2 and into the upper member of the window sash secure the barrel 1 in position. The inner end of the barrel is closed except for a keyhole 4 through which a key 5' may be inserted and withdrawn. The inside of the outer end of the barrel l is provided with threads 6.

The lock bolt shown in Fig. 3 comprises a stem 7 of smaller diameter than the inside diameter of the barrel 1, a threaded body portion 8 for operative engagement with the threads 6, a shoulder or flange 9 rigid with the stem 7 for limiting outward movement of the lock bolt by contact with the threads 6 or any other suitable abutment; and a portion 10 on the inner end of the stem of the lock bolt for engagement by the key 5. It is obvious that the key 5 may be inserted through the keyhole 4 and be engaged with the part 10 of the lock bolt, and that said lock bolt may be operated to or from locking position simply by turning the key.

The cooperating lock element that 1s embedded in the lower member of the upper sash comprises an internally threaded barrel 11 mounted in an appropriate recess in the sash and secured thereto by screws 12 passing through the holes in a {iange 13. The two barrels are so located and arranged that when both windows are closed the barrels are in alinement with each other. Therefore, when the locking bolt is screwed leaves the barrell and screws into 4the oarrel 11. Continued rotation of the lock bolt engages the shoulder 9 with the abutment in the barrel 1, after the threaded body portion v8 is out of engagement with said barrel 1 and is entirely within the barrel 11. Further outward movement of the lock bolt s is prevented by engagement of the shoulder 9 with the abutment in the barrel 1, with the result that continued rotation of `the lock bolt draws or clamps the two window sashes close together.

The variation of this part of the invention shown in Figs 4 and 5 comprises a barrel 14 embedded within the upper member of the lower window sash, and having a web or wall 15 near its outer end. The lock bolt shown comprises a stem 16 mounted for axial movements through the wall 15 and encircled by a spring 17. The outer end of the spring 17 bears againstthe web or wall 15 while the inner end of said spring bears against the washer 18 on the inner end of the stem. As shown, ,a pin 19 assingthrough the stem 16 serves to hol the washer 18 on the stem and may also ser-ve. as a device for engagement with a key whereby the stem may be turned. The outer end of the stem 16 has a lateral projection 2O thereon, the proportion and size of the parts being such that the portion of the barrel 14 outside of the web or wall 15 is of sucient depth to receive the projection 2O and the outer end of the stem 16 so that the stem will not extend beyond the plane of the outer surface of the sash in which the barrel 14 is embedded.

The cooperating locking element that is embedded in the lower member of the upper sash comprises a barrel 21 having a flange 22 seated in a recess in the lower member of the liilplper sash and is retained by screws 23. e inner end of the barrel 21 is closed by a wall havin a hole 24 therethrough of proper form an size to permit the end ot the stem 16 and the projection 2O thereon to pass throu h the hole 24 into the barrel 21. The insi e of the barrel 21 is formed with a spiral iange 25 with which the end of the arm 2O engages. Then when the stem 1,6 is turned by manipulation of a key or otherwise, the arm 20 will draw the stem 16 outwardly, compressing the spring 17 and serving to draw or clamp the two window sashes together.

The other locking device included in the invention comprises a rotary barrel 26 within a case 27 mounted in a recess near one of the upper corners of the lower sash. The barrel 26 is capable of rotation only by a key 28 insertable into and wthdrawable from the barrel through a keyhole 29. The inner end of the barrel 2 6 is rovided with a stem 29a which is polygone in cross section and which extends into a hole ina lock 1,4eo,ase

bolt 30. The lock bolt 30 is exteriorly threaded and is screwed in a sleeve 31 so that when the barrel 26 is turned the lock bolt will be moved axially outwardly or inwardly, depending upon the direction in which it is turned by operation of the key. The outer end of the lock bolt is provided with a pad 32 of non-abrasive material, adapted to press against the adjacent member of the upper window sash.

Alternative forms are shown in Figs. 6 and 7. As shown in Fig. 6 the barrel 33 is held stationary within the lower sash and is interiorly threaded. A stem 3.4 screws into the barrel 33 and is provided with a padded end 35 for pressure. against the adjacent member of the upper sash. The inner end of the stem 34 is formed with` a key enga ing portion 36 whereby said member may e manipulated.

The form shownl inFig. 7 is quite similar to that shown in Fig. 6, except that thev end of the stemhas a pin 37 for engagement with a key. Other parts being similar to' that shown in Fig. 6, similar reference characters are applied thereto.

From the foregoing it is apparent that the locking devices may be cooperatively or independentl employed. When the windows are closed oth of the locking devices may be used, the one at the center clamping the adjacent cross members of the sashes together and the one at the side being effective to press the window sashes close against the frames in which the sashes are mounted. This prevents oscillation or working of the sashes which might tend to release one or the other of the locks. When the middle lock is released, the windows may be partially opened and locked in an relative position by use of the outer locking device alone.

From the foregoing it will be seen that my invention completely accomplishes all of its intended objects. It is capable of other modifications and forms an ornamental and highly eiiicient lock.

I do not restrict myself unessentially, but what Ii claim and desire to secure by Letters Patent, is

1.. The combination with the adjacent horizontal members of upper andlower window sashes; of a lock for said members comprising a barrel mounted in the horizontal.` memberof the lower sash, threads in the outer end of said barrel opposite the lower horizontal member of the upper sash, a stem mounted in said barrel of smaller diameter than the internal diameter of said threads, an enlarged threaded portion on the outer end of said stem arranged to engage with said threads, a flange near the outer end of said stem arranged to abut against the threads to revent further out-` ward movement of sai stem, a. barrel imbedded in the lower horizontal member of the upper sash arranged to be' alined with sald barrel in the lower sash, threads in sald second barrel arrangedto engage the threads 0n said stem, and means for turning said stem to cause the threads thereon to pass wholly out of the first-named barrel and entirely within the second named barrel leavin the unthreaded portion of said stem entirely within the first-named barrel and said iiange against the outer ends of the threads in the rst-named barrel.

2. The combination with the adjacent horizontal members of upper and lower window sashes; of a lock for said members comprising a barrel mounted in the horizontal member of the lower sash, threads in the outer end of said barrel opposite the lower horizontal member of the upper sash, a stem mounted in said barrel of smaller diameter than the internal diameter of said threads, an enlarged threaded portion on the outer end of said stem arranged Ato engage with said threads, a flange near the outer end of said stem arranged to abu't against the threads to prevent further outward movement of said stem, a barrel imbedded in the lower horizontal member of the upper sash arranged to be alined with said barrel inthe lower sash, threads in said second barrel arranged to engage the threads on said stem, means for turning said stem to cause the threads thereon to pass wholly out of the first-named barrel and entirely within the second named barrel leaving the unthreaded portion of said stemv entirely within the first-named barrel and said flange against the outer ends of the threads in the first-named barrel, and means for pressing said two sashes in opposite directions against the frame in which they are mounted.

3. A sash lock, comprising two alined barrels one of which is mounted in one sash and one of' which is mounted in the adjacent sash, threads on the inside of each of saidbarrels and extending only a portion of the length of one barrel, a stem mounted in the last-named barrel, threads on said i stem for engagin the threads in the barrels and being movab e wholly out of the barrel whose threads extend less than the length thereof, and means for ei'ectin a clamping action to draw the sashes toget er as an -incident to the movement of said threads wholly out of one barrel and wholly into the other barrel.

4. A sash lock, comprising two alined barrels one of which is mounted in one sash and one of which is mounted inthe adj-acent sash, threads on the inside of each of said barrels and extending only a portion of the length of one barrel, a stem mounted in the last-named barrel, threads on vsaid stem for engagin the threads in the barrels and being movab e wholly vout of the barrel whose threads extend less than the length thereof, means for effect-ing a clamping action to draw the sashes together as an incident to the movement of said threads wholl out of one barrel and wholly into the ot er barrel, and means for holding the side edges of the sashes ,from oscillation.

5. The combination with vertically movable overlapping upper and lower sashes, of lockin means for said sashes comprising a centra lock composed of two alined threaded barrels one of which is mounted in one sash midway between the side edges of the sash and one of which is mounted in the same relative position in the other sash, a stem mounted in one of said barrels,'threads on said stem for engaging the threads in the barrels and being movable wholly out of one barrel into the other barrel, and means for effecting clampin action to draw the sashes together as an incident to' the movement of said threads wholly out of one barrel and whollyv into the other barrel; and means wholly supportedpby one of said sashes near the s1de edge thereof for pressing against the other sash to force the two sashes in opposite directions against the frame in which they are located.

ALLAN H. Bacon. 

